The Fairbairn-Sykes is a type of combat knife designed for close-quarters fighting. Developed during World War II, it features a double-edged blade and a distinctive hilt that allows for a secure grip. The knife was named after its creators, William Fairbairn and Eric Sykes, who were experts in hand-to-hand combat and close-quarters tactics. Originally intended for use by British commandos, the Fairbairn-Sykes knife became a symbol of elite military units. Its design emphasizes speed and agility, making it effective for stealth operations. The knife remains popular among collectors and military enthusiasts today, reflecting its historical significance and practical utility.